Question

3. (6a? - 8a +9) + (5a3 – 12a? - 1)

4. (8y2 – 15y-5)-(-2y2 – 4y + 20)
I want the answer and the steps

Answer 1

Simplify the expression 3: 5 a ^3 − 6 a ? − 8 a + 8

Simplify the expression 4: 10 y ^2 − 11 y − 25